Trees; a handbook of forest-botany for the woodlands and the laboratory . sessile : venation pinnate. Fraxinus excelsior, L. Ash (Figs. 31, 32). A large tree,with stout woody shoots, often compressed, and leaves up to30—40 cm. long. Leaflets about 9—13, or occasionally 15,sessile, articulated, ovate-lanceolate or lanceolate, acumi-nate, coarsely and unequally sharply serrate, attenuate andentire at the base; each 3—9 (3—15 x 2—3) cm. long,thin, glabrous, and green above, paler and with traces ofpubescence near the margin or on the midrib leaflets shorter than upper. Rachis stiff an
Trees; a handbook of forest-botany for the woodlands and the laboratory . sessile : venation pinnate. Fraxinus excelsior, L. Ash (Figs. 31, 32). A large tree,with stout woody shoots, often compressed, and leaves up to30—40 cm. long. Leaflets about 9—13, or occasionally 15,sessile, articulated, ovate-lanceolate or lanceolate, acumi-nate, coarsely and unequally sharply serrate, attenuate andentire at the base; each 3—9 (3—15 x 2—3) cm. long,thin, glabrous, and green above, paler and with traces ofpubescence near the margin or on the midrib leaflets shorter than upper. Rachis stiff and tough,channelled above, with a prominent pulvinus and leavinga large scar. Exstipulate. Leaves emerge late, after theflowers, and turn brown and yellow in autumn, disarticu-lating as they fall. Venation pinnate, the secondaries nearly straight frommidrib to margin, slightly sinuate and curved upwards,and looping just beneath the margins, where, with the ASH 155 tertiaries, they almost form an infra-marginal vein. Ter-tiaries reticulate into a fine Fig. 31. Ash, Fraxinus excelsior, p. 154 (D). 156 ASH
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Keywords: ., bookcentury1900, bookdecade1900, bookidtreeshandboo, bookyear1904
